1.   Always grip the probes by the plastic collars.

2.   Instead of cutting off the clear plastic collar around the bottle cap, the blade punctured my right thumb.

3.   Remember to hold the tester probes by the insulated wires or plastic collars and do not touch the metal parts of the probes.

4.   That plastic collar is still three inches below the level of the putting surface.

5.   The horseshoe-shaped plastic collar has twin chambers to hold several ounces of water.

6.   The only thing that worried us was remembering to put the plastic collar back inside the housing, which you do to reassemble the machine as a blower.

7.   To use the tester, grasp the leads by the plastic collars.

8.   To test, grasp the probes by the plastic collars around the wires and touch one probe to the metal junction box and the other to a screw terminal.

9.   To install the MicroWick, doctors zap a hole in the eardrum with a laser and insert a tiny plastic collar.

10.   Residents are also turning to pet stores to buy plastic collars containing citronella, a sharp-smelling oil that repels disease-carrying mosquitos.